CN102812655A - Transmission device, transmission power control method and transmission determination method - Google Patents

Transmission device, transmission power control method and transmission determination method Download PDF

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Publication number
CN102812655A
CN102812655A CN2011800150501A CN201180015050A CN102812655A CN 102812655 A CN102812655 A CN 102812655A CN 2011800150501 A CN2011800150501 A CN 2011800150501A CN 201180015050 A CN201180015050 A CN 201180015050A CN 102812655 A CN102812655 A CN 102812655A
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China
Prior art keywords
frequency band
data
transmitted power
transmission
pusch
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CN2011800150501A
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CN102812655B (en
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今村大地
西尾昭彦
中尾正悟
岩井敬
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Panasonic Intellectual Property Corp of America
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Matsushita Electric Industrial Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/06TPC algorithms
    • H04W52/14Separate analysis of uplink or downlink
    • H04W52/146Uplink power control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/34TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/346TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/36TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367Power values between minimum and maximum limits, e.g. dynamic range
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044Arrangements for allocating sub-channels of the transmission path allocation of payload
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/06Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H04W28/065Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/22TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/221TPC being performed according to specific parameters taking into account previous information or commands using past power control commands
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/24TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/242TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/24TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/245TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account received signal strength
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/32TPC of broadcast or control channels
    • H04W52/325Power control of control or pilot channels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

Provided is a transmission device, wherein even when the transmission device performs noncontiguous band allocation transmission, a transmission power control method in which contiguous band allocation transmission is assumed can be reused and the same level of coverage and gain as when the contiguous band allocation transmission is assumed can be maintained without adding a new parameter. In said device, a transmission power control unit (110) sets transmission power on the basis of a transmission power control method which is set on the assumption that bands are contiguous in a first mode, and in a second mode, calculates first power on the basis of the transmission power control method using, as the bandwidth of the contiguous bands in the first mode, the bandwidth of a first band with the lowest frequency in a cluster allocated to the lowest band among a plurality of clusters and the highest frequency in a cluster allocated to the highest band among the plurality of clusters as both ends thereof, and calculates the transmission power using the ratio between the bandwidth of the first band and the bandwidth of a second band to which the plurality of the clusters are allocated, and the first power.

Description

Dispensing device, transmitted power control method and transmission decision method
Technical field
The present invention relates to dispensing device, transmitted power control method and send decision method.
Background technology
In the past; In wireless communication system; Because the nonlinear distortion characteristics of the amplifying circuit (power amplifier: PA (Power Amplifier)) of dispensing device; Produce the radiation (for example, frequency band external radiation (OOBE:Out of Band Emission) and stray radiation (spurious emission)) of unnecessary electric wave at the frequency band except the frequency band that will send the signal transmission.Therefore; Carry out various countermeasures and be used at each wireless communication system and use between other wireless communication systems (adjacent wireless communication system) of the frequency band adjacent, prevent the interference that radiation caused of aforesaid unnecessary electric wave with the frequency band of each wireless communication system.
As be used for preventing and adjacent wireless communication system between the countermeasure of interference, generally speaking, in wireless communication system, to the spectrum mask (Spectrum Mask) of the frequency characteristic regulation transmitted power of the wireless signal that sends.Here; The spectrum mask of transmitted power is represented the permissible range (limiting value) of the transmitted power in each frequency band; Be defined as in the value of spectrum mask of transmitted power, for example exist frequency band external radiation, stray radiation, adjacent channel leakage power than (ACLR:Adjacent Channel Leakage power Ratio) equivalence.Dispensing device in the wireless communication system is through being suppressed to the scope that is no more than spectrum mask (permissible range) with frequency band external radiation amount etc., thereby avoids the interference between wireless communication system.
Here; 3GPP (3rd Generation Partner Project; Third generation partner program) in version 8 specifications of LTE (Long Term Evolution, Long Term Evolution) (below be called Rel.8LTE), carries out data channel (the PUSCH:Physical Uplink Shared Channel of uplink; Physical Uplink Shared Channel) transmission power control (being called classification transmission power control (Fractional TPC)) (for example, with reference to non-patent literature 1).Particularly, dispensing device (being terminal (UE:User Equipment, user terminal)) is controlled the transmitted power P among the subframe i according to the definition of following formula (1) PUSCH(i).
P PUSCH(i)=min{P CMAX,10log 10(M PUSCH(i))+P O_PUSCH(j)+α(j)·PL+Δ TF(i)+f(i)}[dBm] (1)
In formula (1), P CMAXThe maximum transmit power value that expression is set by high level, M PUSCH(i) expression PUSCH that dispensing device is sent among subframe i (i-subframe) the bandwidth (distribution PUSCH transmission bandwidth) [RB] of distributing, P O_PUSCH(j) expression receiving target power (Received Target Power) value, the coefficient of propagation loss (PL:Path Loss, path loss or Propagation Loss, propagation loss) estimated value is multiply by in α (j) expression.PL is illustrated in the propagation loss estimated value that downgoing line dispensing device (UE) is estimated, Δ TF(i) expression and send data class or the corresponding and deviant set of modulation system (QPSK and 16QAM etc.) kind, the accumulated value of f (i) expression transmission power value (controlling value of closed loop transmission power control (Closed-TPC)).
In addition; In Rel.8LTE; In utilizable frequency band in IMT (International Mobile Telecommunication, the international mobile telecommunication) system (below be called the IMT frequency band), stipulated the transmission signal power (for example with reference to non-patent literature 2) that dispensing device (UE) should satisfy.This regulation is for the interference between other wireless communication systems (contiguous wireless communication system) of the contiguous band that prevents the employed frequency band of 3GPP E-UTRAN system (perhaps being sometimes referred to as the LTE system) and use 3GPP E-UTRAN system (LTE system).Particularly; Data frequency position etc. is sent in bandwidth (distribution bandwidth) or distribution according to employed modulation system, distribution transmission data in the modulation of sending data, has set maximum transmit power reduction (the MPR:Maximum Power Reduction) value that makes the maximum transmit power value reduction that dispensing device (UE) is set.In addition, according to the electric wave decree of various countries, being defined as in the strict especially specific I MT frequency band of spectrum mask etc. except the MPR value, also set the maximum transmit power that the maximum transmit power value is reduced and reduced (A-MPR:Additional MPR) value.Thereby dispensing device uses the maximum transmit power value of having considered MPR value and A-MPR value, and (formula is P in (1) CMAX), the control transmitted power.
In addition, in Rel.8LTE, adopt the multiple access mode of SC-FDMA (Single-Carrier Frequency Division Multiple Access, single-carrier frequency division multiple access) as up link (Uplink).That is to say that in Rel.8LTE, in uplink, dispensing device (UE) will send signal allocation and send (sequential frequency band distributes transmission) to continuous frequency, just carry out single carrier and send.Thereby, in Rel.8LTE, set above-mentioned MPR value and A-MPR value based on distribute to send transmission bandwidth that (single carrier transmission) is the transmission data of prerequisite, frequency location etc. with sequential frequency band.
In addition, as the expanding system of Rel.8LTE, begun to realize data signaling rate than Rel.8LTE more version 10 specifications of the LTE of high speed (below be called Rel.10LTE.Sometimes be also referred to as the LTE-Advanced system) standardization.In Rel.10LTE; The sequential frequency band that in Rel.8LTE, is suitable for distributes the transmission (single carrier transmission); Also study PUSCH is assigned to discrete frequency and sends (PUSCH discontinuous bandwidth assignment send) and send PUSCH and control channel (PUCCH:Physical Uplink Control Channel, Physical Uplink Control Channel) (transmission in the time of PUSCH and PUCCH) (for example with reference to non-patent literature 3,4,5) simultaneously.That is to say the following scheme of research in Rel.10LTE: in uplink, except single carrier sends (sequential frequency band distributes transmission), also carry out multicarrier and send (discontinuous bandwidth assignment transmission).
Thus, can be according to the frequency response characteristic of the transmission path (channel) of each dispensing device (UE), the good bandwidth assignment of channel quality is sent signal and sent.Thereby, among the Rel.10LTE, compare with Rel.8LTE, more can expect to improve the throughput characteristic of each dispensing device (UE), and increase the power system capacity in the uplink.
The prior art document
Non-patent literature
Non-patent literature 1:3GPP TS36.213 V8.8.0, " 3GPP TSG RAN E-UTRA Physical layer procedures (Release 8) "
Non-patent literature 2:3GPP TS36.101 V8.8.0, " 3GPP TSG RAN E-UTRA User Equipment (UE) radio transmission and reception (Release 8) "
Non-patent literature 3:R4-100635, Ericsson, ST-Ericsson, " Non-contiguous UE transmission per CC, " 3GPP TSG-RAN WG4Meeting#54, San Francisco, USA, 22-26February 2010.
Non-patent literature 4:R4-100551, Huawei, " Impact of PUSCH and PUCCH on SEM " 3GPP TSG-RAN WG4Meeting#54, San Francisco, USA, 22-26February 2010.
Non-patent literature 5:R4-100718, NTT DOCOMO, " Simultaneous PUCCH/PUSCH transmission in LTE-A " 3GPP TSG-RAN WG4Meeting#54, San Francisco, USA, 22-26February 2010.
Summary of the invention
The problem that invention will solve
As stated, the MPR value of in Rel.8LTE, setting (A-MPR value) is that distribute to send (single carrier transmission) with sequential frequency band be prerequisite, is set at the regulation of the spectrum mask that satisfies each IMT frequency band etc.Therefore; In Rel.10LTE, importing discontinuous bandwidth assignment sends under the situation of (multicarrier transmission); If directly use the MPR value of in Rel.8LTE, setting (A-MPR value), then might be with sending data with amount of radiation transmission above the spectrum mask of each IMT frequency band.
For example; Fig. 1 is illustrated in the band system band of frequency bandwidth with 10MHz (10MHzChannel shown in Figure 1 (5MHz~5MHz)), sends the situation (solid line) of (multicarrier transmissions) and as Rel.8LTE, carries out transmitted power and the relation between the frequency under the situation (dotted line) of sequential frequency band distribution transmission (single carrier transmission) as carrying out discontinuous bandwidth assignment the Rel.10LTE.In Fig. 1, the discontinuous two ends (about 5MHz and about 5MHz) that are assigned to band system band respectively of the transmission data that multicarrier sends, the transmission data that single carrier sends are assigned to a side's of band system band end (about 5MHz) continuously.In addition, in Fig. 1, use maximum transmit power value (23dBm+ admissible error) and the spectrum mask in Rel.8LTE, set.
As shown in Figure 1, in being assigned frequency band (band system band) frequency band in addition that sends data, produce nonlinear distortion component (frequency band external radiation component or the spuious component of PA.Below be called spuious).But, show like Fig. 1, carry out sequential frequency band and distribute to send in the frequency spectrum (dotted line) of transmission data of (single carrier transmission), do not produce spuious above spectrum mask (permissible range).With respect to this; As shown in Figure 1; Send in the frequency spectrum (solid line) of transmission signal of (multicarrier transmissions) the spuious permissible range that generates owing to the intermodulation distortion component of the high-order that respectively sends data (3 rank, 5 rank, 7 rank) of discontinuous distribution above spectrum mask etc. through discontinuous bandwidth assignment.
Thereby in Rel.10LTE, must send (multicarrier transmission) with discontinuous bandwidth assignment is prerequisite, resets MPR value (A-MPR value).
As the new establishing method of MPR value (A-MPR value), can consider each is distributed discrete bandwidth assignment situation of sending signal (PUSCH, PUCCH), set the method for suitable MPR value (A-MPR value).Yet, MPR value (A-MPR value) according to the bandwidth of sending signal, be assigned the frequency location that sends signal, be assigned the number of resource blocks (distributing RB (Resource Block) number) of sending signal and different.Thereby, to each discrete bandwidth assignment situation set in the method for MPR value (A-MPR value), set the needed apparatus structure of testing man-hour and the dispensing device more complicacy (complexity increase) that becomes.
Thereby; As the new establishing method of setting MPR value (A-MPR value) simply, can consider following method: the MPR value (A-MPR value) of only setting specific I MT frequency band that minority (for example one or two) supposed that the regulation of the poorest discontinuous bandwidth assignment situation and spectrum mask etc. is strict especially etc.Thus, need not to each discrete bandwidth assignment situation (send signal bandwidth, be assigned the frequency location that sends signal, be assigned the number of resource blocks of sending signal) set MPR value (A-MPR value) and under any discontinuous bandwidth assignment situation, can suppress spuious generation above the permissible range of spectrum mask etc.Yet; In the case; Always be to use the MPR value (A-MPR value) of the strict especially specific I MT frequency band of the regulation of having supposed the poorest discontinuous bandwidth assignment situation and spectrum mask etc.; Therefore even if fully under the state in permissible range, also imposing necessary above transmitted power restriction to out-of-band unwanted amount of radiation.Therefore produce the problem that can't obtain optimal coverage rate and optimal gain.
Carry out under the situation of discontinuous bandwidth assignment transmission even if the object of the present invention is to provide at dispensing device; When transmission power control; Also can utilize again and suppose that sequential frequency band distributes the transmitted power control method among the Rel.8LTE that sends and do not append new argument, and then can keep and suppose that sequential frequency band distributes the coverage rate of the situation same degree of sending and dispensing device, transmitted power control method and the transmission decision method of gain.
The scheme of dealing with problems
The dispensing device of first form of the present invention; Use first pattern and second pattern; Said first pattern will be sent data allocations to continuous frequency band, and said second pattern will be sent data and is divided into a plurality of clusters and said a plurality of clusters are assigned to discrete a plurality of frequency band respectively, and the structure that this dispensing device adopted comprises: control unit; According to said first pattern and said second pattern, control the transmitted power of said transmission data; And transmitting element; Send said transmission data with said transmitted power; When said first pattern; The transmitted power control method that said control unit is set based on the said continuous frequency band of hypothesis; Set said transmitted power, when said second pattern, said control unit is the bandwidth of the continuous frequency band in said first pattern with the bandwidth settings of first frequency band; Continuous frequency band and said transmitted power control method based on said setting calculate first power; And the bandwidth and the said discrete a plurality of frequency bands that have been assigned with said a plurality of clusters that use said first the frequency band i.e. ratio and said first power of the bandwidth of second frequency band, calculating said transmitted power, the interior highest frequency of low-limit frequency and the cluster that be assigned to the highest frequency band in said a plurality of cluster of said first frequency band in will the cluster that is assigned to minimum frequency band in said a plurality of clusters is as its two ends.
The dispensing device of second form of the present invention; Control first respectively independently and send the transmitted power of data and the transmitted power of the second transmission data; The structure that this dispensing device adopted comprises: identifying unit; Critical parameter and determinating reference are compared, thereby judge it is to send said first simultaneously to send data and the said second transmission data, still only send said first and send the wherein side that data and said second are sent data; And transmitting element; Result of determination based on said identifying unit; Send said first and send data and the said second transmission data; Said critical parameter is the performance number that multiplies each other and calculated through with first parameter and second parameter; Said first parameter is the transmitted power of per unit frequency; Be said first send data the per unit frequency transmitted power promptly the first transmitted power density and said second send the i.e. transmitted power of bigger per unit frequency in the second transmitted power density of transmitted power of the per unit frequency of data; Said second parameter is the bandwidth of frequency band, and this frequency band sends low-limit frequency and said first in the transmission data that are assigned to minimum frequency band that data and said second send in the data with said first and sends highest frequency in the transmission data that are assigned to the highest frequency band that data and said second send in the data as its two ends.
The transmitted power control method of the 3rd form of the present invention; Be used to use the dispensing device of first pattern and second pattern; Said first pattern will be sent data allocations to continuous frequency band; Said second pattern will be sent data and will be divided into a plurality of clusters and said a plurality of clusters are assigned to discrete a plurality of frequency band respectively, these transmitted power control method employing following steps: the transmitted power of controlling said transmission data according to said first pattern and said second pattern; And send said transmission data with the transmitted power of said control; In said first pattern; Transmitted power control method based on the continuous band setting of hypothesis is set said transmitted power; In said second pattern; Highest frequency in the cluster that is assigned to the highest frequency band in low-limit frequency in the cluster that is assigned to minimum frequency band in said a plurality of clusters and the said a plurality of cluster is set to the bandwidth of the continuous frequency band in said first pattern as the bandwidth of first frequency band at its two ends; And calculate first power based on the continuous frequency band and the said transmitted power control method of said setting, and use the bandwidth of said first frequency band and the said discrete a plurality of frequency bands that distributed said a plurality of clusters i.e. ratio and said first power of the bandwidth of second frequency band, calculate said transmitted power.
The transmission decision method of the 4th form of the present invention, be used for controlling independently respectively first send data transmitted power and second send the dispensing device of the transmitted power of data, this method adopts following steps; Critical parameter and determinating reference are compared, thereby judge it is to send said first simultaneously to send data and the said second transmission data, still only send said first and send the wherein side that data and said second are sent data; And based on said result of determination; Send said first and send data and the said second transmission data; Said critical parameter is the performance number that multiplies each other and calculated through with first parameter and second parameter; Said first parameter is the transmitted power of per unit frequency; Be said first send the per unit frequency of data transmitted power and said second send the transmitted power of per unit frequency bigger in the transmitted power of per unit frequency of data; Said second parameter is the bandwidth of frequency band, and this frequency band sends low-limit frequency and said first in the transmission data that are assigned to minimum frequency band that data and said second send in the data with said first and sends highest frequency in the transmission data that are assigned to the highest frequency band that data and said second send in the data as its two ends.
The effect of invention
According to the present invention; Even if carry out at dispensing device under the situation of discontinuous bandwidth assignment transmission; When carrying out transmission power control, also can utilize again and suppose that sequential frequency band distributes the transmitted power control method among the Rel.8LTE that sends and do not append new argument, and then can keep and suppose that sequential frequency band distributes the coverage rate and the gain of the situation same degree of sending.
Description of drawings
Fig. 1 is that the expression single carrier is when sending and transmitted power and the figure of relation frequency between of multicarrier when sending.
Fig. 2 is the block diagram of structure of the dispensing device of expression embodiment of the present invention 1.
Fig. 3 is the block diagram of internal structure of the transmission power control unit of expression embodiment of the present invention 1.
Fig. 4 is the figure that the transmission power control of expression embodiment of the present invention 1 is handled.
Fig. 5 is the figure that the transmission power control of expression embodiment of the present invention 1 is handled.
Fig. 6 is the figure of the flow process handled of the transmission power control of expression embodiment of the present invention 1.
Fig. 7 is the figure of the relation of transmitted power and the frequency of the multicarrier of expression embodiment of the present invention 1 when sending.
Fig. 8 is the figure that other transmission power control of expression embodiment of the present invention 1 are handled.
Fig. 9 is the block diagram of structure of the dispensing device of expression embodiment of the present invention 2.
Figure 10 is the block diagram of internal structure of the transmission power control unit of expression embodiment of the present invention 2.
Figure 11 is the figure that the transmission power control of expression embodiment of the present invention 2 is handled.
Figure 12 is the figure (situation of frequency hopping) that the transmission power control of expression embodiment of the present invention 2 is handled.
Figure 13 is the figure of the flow process handled of the transmission power control of expression embodiment of the present invention 2.
Label declaration
100,300: dispensing device
101: antenna
102: radio receiving unit
103:CP removes the unit
The 104:FFT unit
105: extraction unit
106: demodulating unit
107: decoding unit
108,301:CRC unit
109: the propagation loss determination unit
110,302: the transmission power control unit
111,303: sending controling unit
112,305: coding unit
113,306: modulating unit
114,308: map unit
The 115:IFFT unit
The 116:CP extra cell
117: the wireless transmission unit
118: signal amplification unit
210,410: the sequential frequency band transmission power calculation unit
211,411: comparing unit
212,412: transmitted power is setup unit again
304,307: gain control unit
413: send data selection unit
414: switch (SW)
415: the transmission power gain control unit
Embodiment
Below, with reference to accompanying drawing execution mode of the present invention is elaborated.For example, in UE, possesses dispensing device of the present invention.
(execution mode 1)
The dispensing device of this execution mode (UE) constitutes can support to send data allocations to the single carrier sending mode of continuous frequency band (sequential frequency band distribute send) and will send multicarrier sending mode (the discontinuous bandwidth assignment transmission) both sides that data are assigned to discrete a plurality of frequency bands respectively.That is to say that the dispensing device of this execution mode will send data through single carrier transmission or multicarrier transmission and be sent to not shown receiving system (base station: BS or eNB).
In addition, in following explanation, dispensing device sends user data (PUSCH) as sending data.For example; Dispensing device is when carrying out the multicarrier transmission; To send the suitable Clustered DFT-s-OFDM of data (Clustered Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplexing, cluster discrete Fourier transform expansion OFDM) mode sends.In the Clustered DFT-s-OFDM mode, will send data (PUSCH) and be divided into a plurality of sequential frequency bands (below be called cluster (cluster)), a plurality of clusters will be assigned to discrete a plurality of frequency band respectively.
Fig. 2 representes the structure of the dispensing device 100 (UE) of this execution mode.In dispensing device shown in Figure 2 100; Radio receiving unit 102 receives the OFDM code element of sending from receiving system (eNB) through antenna 101; The OFDM code element that receives is carried out down-conversion, A/D (analog/digital) conversion wait to receive and handle, and will export CP removal unit 103 to through receiving the OFDM code element of handling.
CP removes unit 103 and removes and be additional to through receiving the CP (Cyclic Prefix) of the OFDM code element of handling, and the OFDM code element that will remove CP exports FFT (Fast Fourier Transform, FFT) unit 104 to.
FFT unit 104 carries out FFT for the OFDM code element of having removed CP, obtains to have the reception signal that has shone upon pilot signal, control information or a plurality of subcarriers of downlink data, exports the reception signal that obtains to extraction unit 105.In addition, in control information, comprise; Radio resource allocation information) and the transmission power control information of the expression information relevant with closed loop (closed loop) transmission power control the frequency band allocation information (information of radio resource allocation: of the frequency band that distributes is sent in expression to the signal of dispensing device 100.
Extraction unit 105 extracts by the control information of receiving system (eNB) notice from a plurality of subcarriers by the reception signal of FFT unit 104 output and exports demodulating unit 106 to when receiving control information.This control information is by demodulating unit 106 demodulation, and inputs to decoding unit 107.Input to CRC unit 108 from the control information of demodulating unit 106 inputs by decoding unit 107 decodings.On the other hand; When receiving downlink data; Extraction unit 105 is according to the allocation of radio resources result who is prenoticed by receiving system (eNB); From from a plurality of subcarriers of the reception signal of FFT unit 104 output, extract the downlink data that mails to dispensing device 100, with the downlink data that is extracted as receiving data output.In addition, the extraction unit 105 reception signal that will have an at least one side in downlink data and the pilot signal exports propagation loss determination unit 109 to.
108 pairs of each control informations (for example frequency band allocation information, transmission power control information) from decoding unit 107 inputs in CRC unit are carried out CRC (Cyclic Redundancy Check, CRC) and are judged.And, being judged to be can receive control information exactly the time, CRC unit 108 exports frequency band allocation information and transmission power control information to transmission power control unit 110 and sending controling unit 111.
Propagation loss determination unit 109 uses data-signal (downlink data) or the pilot signal that from the reception signal of extraction unit 105 inputs, is comprised; Perhaps data-signal and pilot signal both sides measure from the propagation loss (PL) of the signal of receiving system (eNB) transmission.Next, the propagation loss information (PL) of propagation loss determination unit 109 propagation loss that will represent to be measured exports transmission power control unit 110 to.
The frequency band allocation information that transmission power control unit 110 uses 108 inputs from the CRC unit and transmission power control information, control information (the maximum transmit power value P that imports in advance from high level (not shown) CMAX, receiving target power, multiply by propagation loss alpha and with send the offset value delta that data class or modulation system (QPSK, 16QAM etc.) kind are set accordingly TFEtc. parameter) and, determine transmitted power based on the transmission data of frequency band allocation information (just sending mode is single carrier sending mode or multicarrier sending mode) transmission from the propagation loss information (PL) that propagation loss determination unit 109 is imported.Next, transmission power control unit 110 inputs to signal amplification unit 118 and control signal amplifying unit 118 through the transmission power value with decision, so that send the transmission power value that the transmitted power of data becomes decision.In addition, the details handled of the transmission power control in the transmission power control unit 110 with after state.
Sending controling unit 111 is based on the transmission control of being sent data by the frequency band allocation information of receiving system (eNB) notice.Specifically; Sending controling unit 111 based on from the distributing radio resource shown in the frequency band allocation information of CRC unit 108 input with send parameter, export the physical resource positional information of encoding rate, modulation system and expression physical resource position (RB:Resource Block) to coding unit 112, modulating unit 113 and map unit 114 respectively.
In coding unit 112, encode to sending data according to encoding rate, and will export modulating unit 113 to through the transmission data (coded-bit row) of coding from sending controling unit 111 inputs.
Modulating unit 113 modulate for the transmission data of importing from coding unit 112 (coded-bit row), and the transmission data after will modulating exports map unit 114 to according to the modulation system from sending controling unit 111 inputs.
Map unit 114 will be from the transmission data map of modulating unit 113 input to from the physical resource shown in the physical resource positional information of sending controling unit 111 inputs; To have with the suitable a plurality of subcarrier signals of physical resource that are mapped with the transmission data and export IFFT (Inverse Fast Fourier Transform, invert fast fourier transformation) unit 115 to.In addition, map unit 114 is mapped to the physical resource of guaranteeing for control information with not shown control information, will have with the suitable a plurality of subcarrier signals of physical resource that are mapped with control information to export IFFT unit 115 to.
IFFT unit 115 carries out IFFT and generates SC-FDMA (Single-carrier Frequency-Division Multiple Access for having a plurality of subcarrier signals of having shone upon control information (not shown) or having sent data; The single carrier frequency division multiplexing) code element; Export the SC-FDMA code element that generates to CP (Cyclic Prefix, Cyclic Prefix) extra cell 116.
The beginning that CP extra cell 116 will divide identical signal to be attached to the SC-FDMA code element as CP with the tail portion of SC-FDMA code element of 115 inputs from the IFFT unit exports the SC-FDMA code element after additional to wireless transmission unit 117.
SC-FDMA code element after the 117 couples of CP from 116 inputs of CP extra cell in wireless transmission unit are additional is carried out D/A conversion, amplification and up-conversion etc. and is sent processing, will export signal amplification unit 118 to as sending signal through sending the SC-FDMA that handles.
Signal amplification unit 118 amplifies for the transmission signal of 117 inputs from the wireless transmission unit; Transmission power value (by the transmitted power of transmission power control unit 110 controls) to be 110 inputs from the transmission power control unit sends to receiving system (eNB) with the transmission signal after amplifying from antenna 101.
Next, the details of the transmission power control in the transmission power control unit 110 of dispensing device 100 being handled describes.
Fig. 3 representes the internal structure of transmission power control unit 110.In transmission power control unit 110 shown in Figure 3; Sequential frequency band transmission power calculation unit 210 is according to the frequency band allocation information of 108 inputs from the CRC unit, and the frequency band (allocated frequency band of dispensing device 100) of distributing to dispensing device 100 according to following formula (2) calculating hypothesis is the transmitted power P in the i subframe under the situation of sequential frequency band C(i).Next, sequential frequency band transmission power calculation unit 210 is with the transmitted power P that calculates C(i) export comparing unit 211 to.
P C(i)=10log 10(M C(i))+P O_PUSCH(j)+α(j)·PL+Δ TF(i)+f(i)[dBm] (2)
In formula (2), P O_PUSCH(j) expression receiving target performance number, the coefficient that multiply by propagation loss (PL) value that α (j) expression is set by high level, PL representes the propagation loss value by propagation loss determination unit 109 mensuration, Δ TF(i) expression is by the deviant corresponding to transmission data class or modulation system (QPSK and 16QAM etc.) kind of high level setting, and f (i) representes the accumulated value of the transmission power value (controlling value of Closed-TPC) of 108 inputs from the CRC unit.In addition, the transmitted power calculating formula shown in above-mentioned each parameter and the formula (2) is an example, and each parameter and transmitted power calculating formula are not limited thereto.For example, in formula (2), also can not comprise parameter alpha (j), Δ TF(i), f parameters such as (i), also can use other parameters to replace.
In addition, in formula (2), M C(i) allocated frequency band of expression hypothesis dispensing device 100 is the transmission bandwidth for the transmission data in the i sub-frame (unit is RB) under the situation of sequential frequency band.That is to say that sequential frequency band transmission power calculation unit 210 is according to being continuous from allocated frequency band shown in the frequency band allocation information of CRC unit 108 inputs, dispensing device 100 or sending bandwidth M for discrete the setting C(i).
Particularly, sequential frequency band transmission power calculation unit 210 is under the continuous situation (sending at single carrier under the situation of (sequential frequency band distributions) pattern) at the allocated frequency band of dispensing device 100, itself is set at transmission bandwidth M with distributing the RB that sends data to count C(i) [RB].
On the other hand; Allocated frequency band at dispensing device 100 is (to send at multicarrier under the situation of (discontinuous bandwidth assignment) pattern) under discrete situation, and sequential frequency band transmission power calculation unit 210 is used the RB n of the low-limit frequency in the cluster in cutting apart a plurality of clusters that send data and generate, that be assigned to minimum frequency band Low RB, and the RB n of the highest frequency in the cluster in a plurality of clusters, that be assigned to the highest frequency band High RB, set transmission bandwidth M according to following formula (3) C(i) [RB].
M C ( i ) = n high RB - n low RB + 1 [ RB ] - - - ( 3 )
For example, like Fig. 4 and shown in Figure 5, the situation of dispensing device 100 being distributed 11 RB of RB numbers 1~5,13~18 is described.That is to say that in Fig. 4 and Fig. 5, to 5 continuous RB of RB number 1~5, and 6 continuous RB of RB numbers 13~19 distribute respectively and will send that data are cut apart and two clusters generating.
Thereby as shown in Figure 4, sequential frequency band transmission power calculation unit 210 is under discrete situation at the allocated frequency band to dispensing device 100, confirms the RB n of the low-limit frequency in the cluster that is assigned to minimum frequency band (RB number 1~5 RB) in a plurality of clusters Low RB=1, and the RB n of the highest frequency in the cluster that is assigned to the highest frequency band in a plurality of cluster (RB number 13~18 RB) High RB=18.Next, as shown in Figure 4, sequential frequency band transmission power calculation unit 210 is used n Low RB=1 and n High RB=18, set transmission bandwidth M according to following formula (3) C(i)=18-1+1=18 [RB].
Like this; Sequential frequency band transmission power calculation unit 210 is under discrete situation at the allocated frequency band of dispensing device 100; With following band setting is that sequential frequency band distributes the continuous frequency band that sends in (single carrier transmission), and this frequency band is frequency band (the transmission bandwidth M of the interior highest frequency of low-limit frequency that the cluster that is assigned to minimum frequency band in the allocated frequency band of dispensing device 100 (being assigned discrete a plurality of frequency bands of a plurality of clusters) is interior and the cluster that is assigned to the highest frequency band as its two ends C(i).Among Fig. 4 the 18RB of RB number 1~18).Next, sequential frequency band transmission power calculation unit 210 is calculated and has been supposed that sequential frequency band distributes the transmitted power P that sends based on the continuous frequency band that sets C(i).That is to say; In Fig. 4; Is the transmission signal of the discontinuous bandwidth assignment of 11RB for reality to the bandwidth assignment of dispensing device 100, and sequential frequency band transmission power calculation unit 210 is calculated the sequential frequency band of having supposed also to comprise the actual unallocated frequency band of giving dispensing device 100 (among Fig. 4 for RB numbers 6~12 7RB) and distributed the transmitted power P that sends C(i).
In addition, in Fig. 4 and Fig. 5, explained from the situation of low frequency with additional continuously RB number of ascending order.But; In essence, sequential frequency band transmission power calculation unit 210 is calculated and has been supposed the continuous frequency band of the RB of RB that comprises low-limit frequency in the allocated frequency band of dispensing device 100 and highest frequency (with the RB of the RB of low-limit frequency and the highest frequency frequency band as two ends) is assigned to the transmitted power under the situation of dispensing device 100.
Next, comparing unit shown in Figure 3 211 uses following formulas (4) relatively from the transmitted power P of sequential frequency band transmission power calculation unit 210 inputs C(i) with from the maximum transmit power value P of high level input CMAXResult relatively is with the transmitted power P that is judged to be littler value C(i) and maximum transmit power value P CMAXA wherein side as transmission power value P ' C(i) export transmitted power setup unit 212 again to.In addition, maximum transmit power value P CMAXFor comprising the MPR value set frequency band position according to band system band etc. and the maximum transmit power value of A-MPR value.
P′ C(i)=min{P CMAX,P C(i)}[dBm] (4)
Next, setup unit 212 is based on the frequency band allocation information of 108 inputs from the CRC unit again for transmitted power shown in Figure 3, and setting is to sending the transmission power value of data.
Particularly; Transmitted power setup unit 212 again (is sent at single carrier under the situation of (sequential frequency band distribution) pattern) under the allocated frequency band to dispensing device 100 shown in the frequency band allocation information is continuous situation; Shown in (5), will be from the transmission power value P ' of comparing unit 211 inputs C(i) be set at sending the transmission power value P of data PUSCH(i).
P PUSCH(i)=P′ C(i)[dBm] (5)
That is to say that under the allocated frequency band of dispensing device 100 was continuous situation, transmission power control unit 110 use formulas (2), formula (4) and formula (5) were controlled transmission power value P PUSCH(i).Here, the combination of formula (2), formula (4) and formula (5) is and formula (the 1) (transmitted power control method of Rel.8LTE.Suppose that just sequential frequency band distributes the transmitted power control method that sends and set) equivalence.
On the other hand; Allocated frequency band at the dispensing device shown in the frequency band allocation information 100 is (to send at multicarrier under the situation of (discontinuous bandwidth assignment) pattern) under discrete situation, and transmitted power setup unit 212 again uses actual allocated to count M for the RB of dispensing device 100 PUSCH(i), set sending the transmission power value P of data according to following formula (6) PUSCH(i).
P PUSCH ( i ) = P C ′ ( i ) + 10 log 10 ( M PUSCH ( i ) M C ( i ) ) [ dBm ] - - - ( 6 )
For example, as shown in Figure 5, the RB that in fact distributes to dispensing device 100 counts M PUSCH(i) be 11RB.Thereby, in Fig. 5, transmitted power again setup unit 212 in formula (6) with transmitted power P PUSCH(i) be set at (P ' C(i)+10log 10(11/18)).
That is to say, be under discrete situation at the allocated frequency band of dispensing device 100, and transmission power control unit 110 use formulas (2), formula (4) and formula (6) are controlled transmission power value P PUSCH(i).Here, when discontinuous bandwidth assignment was sent (multicarrier transmission), transmission power control unit 110 calculates in formula (6) by formula (2) and formula (4) supposed that sequential frequency band distributes and the transmitted power (P of calculating C(i) or P CMAX) in, be equivalent to the RB number (M among Fig. 5 that actual allocated is given dispensing device 100 PUSCH(i)=11RB) transmitted power P PUSCH(i).That is to say that transmission power control unit 110 (transmitted power is setup unit 212 again) uses the bandwidth M that is assigned the frequency band that sends data (a plurality of cluster) PUSCH(i) with will be assigned low-limit frequency and highest frequency in the frequency band that sends data (a plurality of cluster) as the bandwidth M of the frequency band at its two ends C(i) ratio and transmission power value P ' C(i), set transmission power value P PUSCH(i).
Below, the flow process that the transmission power control in the transmission power control unit 110 is handled describes.Fig. 6 is the flow chart of the flow process of the transmission power control processing in the expression transmission power control unit 110.
In Fig. 6; In step (below be called " ST ") 101; Transmission power control unit 110 (sequential frequency band transmission power calculation unit 210) judges whether the allocated frequency band of dispensing device 100 is sequential frequency band, and just whether the bandwidth assignment to dispensing device 100 is that sequential frequency band distributes.In the bandwidth assignment to dispensing device 100 is under the sequential frequency band situation of distributing (ST101: " being "); Just under the situation of single carrier sending mode; In ST102, sequential frequency band transmission power calculation unit 210 is calculated and the corresponding transmission power value P of the RB number of distributing to dispensing device 100 (distributing the RB number) C(i).That is to say, sequential frequency band transmission power calculation unit 210 in formula (2), with the distribution RB number of dispensing device 100 as sending bandwidth M C(i) calculate transmission power value P C(i).
On the other hand; In bandwidth assignment (ST101: " denying ") under the situation of discontinuous bandwidth assignment to dispensing device 100; Just under the situation of multicarrier sending mode; In ST103, sequential frequency band transmission power calculation unit 210 will be set at and send bandwidth M corresponding to the RB number (for example being 18RB among Fig. 4) of continuous frequency band C(i), said continuous frequency band will be distributed to RB (the for example shown in Figure 4 n corresponding with low-limit frequency in the cluster among the RB of the transmission data (a plurality of cluster) that dispensing device 100 sends, that be assigned to lowest band Low RB=1) and be assigned to RB (the for example shown in Figure 4 n corresponding in the cluster of high frequency band with highest frequency High RB=18) as two ends.Next, sequential frequency band transmission power calculation unit 210 is used the transmission bandwidth M that sets C(i), calculate transmission power value P according to formula (2) C(i).
In ST104, the maximum transmit power value P that transmission power control unit 110 (comparing unit 211) relatively imported from high level CMAXWith the transmission power value P that in ST102 or ST103, calculates C(i) (formula (4)).At maximum transmit power value P CMAXBe transmission power value P C(i) under the situation below (ST104: " denying "), in ST105, shown in (4), comparing unit 211 is with maximum transmit power value P CMAXExport to transmitted power again setup unit 212 as transmission power value P ' C(i).
On the other hand, at maximum transmit power value P CMAXGreater than transmission power value P C(i) under the situation (ST104: " being "), in ST106, comparing unit 211 is suc as formula shown in (4), with transmission power value P C(i) export to transmitted power again setup unit 212 as transmission power value P ' C(i).
In ST107, transmission power control unit 110 (transmitted power is setup unit 212 again) and ST101 judge likewise whether the bandwidth assignment to dispensing device 100 is that sequential frequency band distributes.In the bandwidth assignment to dispensing device 100 is that transmitted power setup unit 212 is again calculated the transmission power value P ' that in ST105 or ST106, confirms under the sequential frequency band situation of distributing (ST107: " being ") C(i) as transmission power value P to the transmission data PUSCH(i) (formula (5)).
On the other hand, in bandwidth assignment (ST107: " denying ") under the situation of discontinuous bandwidth assignment to dispensing device 100, transmitted power setup unit 212 is again used the transmission power value P ' that in ST105 or ST106, confirms C(i) calculate sending the transmission power value P of data according to formula (6) PUSCH(i).
In ST110, the transmission power value P that transmission power control unit 110 (transmitted power is setup unit 212 again) will calculate in ST108 or ST109 to the transmission data PUSCH(i) export signal amplification unit 118 to.
Below, use the graph of a relation of frequency shown in Figure 7 and radiant power (radiant power) that principle of the present invention is described.
Transverse axis is represented frequency [Hz] in Fig. 7, and the longitudinal axis is represented radiant power [dBm].In addition, the frequency band beyond the band system band shown in Figure 7 is generally the frequency band that other are served, system utilized.In addition, spectrum mask shown in Figure 7 represent for example in Rel.8LTE, to set with SEM (Spurious Emission Mask: be the spectrum mask of representative the stray radiation shielding).
In addition,, the situation (situation of discontinuous bandwidth assignment) near the discrete frequency band the two ends of dispensing device 100 distribution band system band shown in Figure 7 is described here.For example, dispensing device 100 will be cut apart near the two ends (allocated frequency band of dispensing device 100) that two clusters (sequential frequency band) that send data and generate are distributed to band system band shown in Figure 7.
A chain-dotted line shown in Figure 7 is illustrated in when carrying out discontinuous bandwidth assignment transmission (multicarrier transmission just), transmitted power and radiant power outside the band system band and the relation between the frequency (just identical with solid line shown in Figure 1), that band system band is interior under the situation of the transmitted power control method of use Rel.8LTE (supposing that sequential frequency band distributes the transmitted power control method that sends and set).In this transmitted power control method, relatively consider the maximum transmit power value P of MPR value and A-MPR value CMAXWith total transmitted power (Total transmission power).That is to say that dispensing device can be no more than maximum transmit power value P in total transmitted power CMAXScope in will send signal transmitted power amplify.That is to say, in this transmitted power control method, total transmitted power is applied restriction.Its result does; In Fig. 7; Shown in a chain-dotted line; Total carrying out the frequency bandwidth that transmission signal that discontinuous bandwidth assignment sends occupied is narrower than under the situation of system bandwidth; And then be assigned under the situation with the more approaching frequency band in the two ends of band system band sending signal, sometimes because the spectrum mask that the performance number of high-order intermodulation distortion (IMD:Inter-Modulation Distortion) component (spuious) that the nonlinear distortion characteristics of PA produces sets outward above the frequency band of band system band.
With respect to this; In this execution mode; In dispensing device 100, total transmitted power is not applied restriction, and to the transmitted power of per unit frequency [Hz], just transmitted power density (Transmission power spectral density) [dBm/Hz] applies restriction.
Particularly, as stated, dispensing device 100 (sequential frequency band transmission power calculation unit 210) calculates hypothesis with continuous frequency band (the transmission bandwidth M shown in the formula (3) C(i)) distribute to transmitted power P under the situation of dispensing device 100 C(i) (formula (2)), the interior highest frequency (RB) of the low-limit frequency (RB) in the cluster that is assigned to lowest band in the transmission data (a plurality of cluster) that said continuous frequency band will be sent by dispensing device 100 and the cluster that is assigned to high frequency band is as its two ends.Next, dispensing device 100 (comparing unit 211) supposes that relatively sequential frequency band distributes the transmitted power P that sends and calculate C(i) and maximum transmit power value P CMAXThereby, confirm transmission power value P ' C(i).
Like this, dispensing device 100 is asked and has been supposed that dispensing device 100 carries out the transmitted power P ' of sequential frequency band when distributing the situation of sending with the continuous frequency band that comprises discrete allocated frequency band C(i).That is to say that dispensing device 100 can be tried to achieve the spuious transmitted power of the permissible range that does not produce the transmitted power that surpasses the regulations of being set by hypothesis sequential frequency band distribution transmission (Rel.8LTE) such as spectrum mask.
For example, dotted line shown in Figure 7 low-limit frequency (RB) and the highest frequency (RB) representing to suppose to distribute in the frequency band of dispensing device 100 (sends bandwidth M as the continuous frequency band at two ends C(i)) be assigned to transmitted power P ' under the situation of dispensing device 100 C(i) and the relation between the frequency.Shown in the dotted line among Fig. 7, the radiant power beyond band system band is no more than spectrum mask (permissible range).
And, the transmitted power P when dispensing device 100 (transmitted power is setup unit 212 again) through type (6) is set multicarrier transmission (discontinuous bandwidth assignment transmission) PUSCH(i), so that the transmitted power density of the transmitted power density of multicarrier when sending (discontinuous bandwidth assignment transmission) when sending (sequential frequency band distributes transmission) with single carrier is same degree.Particularly, as shown in Figure 7, dispensing device 100 in band system band, the transmitted power P when adjusting discontinuous bandwidth assignment and sending PUSCH(i) (solid line) is so that it becomes and suppose the transmitted power density of the transmitted power density same degree of (dotted line) under the situation that sequential frequency band distribute to send.That is to say that dispensing device 100 calculates and supposed that sequential frequency band distributes the transmitted power P ' under the situation of sending in band system band C(i) in (dotted line shown in Figure 7) with the suitable transmitted power P of the frequency band of distributing to dispensing device 100 practically (distribute RB number) PUSCH(i) (solid line shown in Figure 7).
Thus, in dispensing device 100, in band system band, can the transmitted power density of the transmission signal that carries out discontinuous bandwidth assignment transmission be made as with supposing sequential frequency band and distribute the transmitted power density same degree under the situation of sending.Thereby, as shown in Figure 7, also can the spuious power density (solid line) of the frequency band radiation beyond band system band be made as and suppose that sequential frequency band distributes spuious power density (dotted line) same degree (or littler value) when sending.
Like this, in dispensing device 100,, also set and be no more than the transmitted power of distributing the spectrum mask that is sent as prerequisite and stipulates with sequential frequency band even if when discontinuous bandwidth assignment is sent.That is to say, in dispensing device 100, even if, also can directly use (utilizing again) sequential frequency band to distribute the setting (the for example setting of the MPR value of Rel.8LTE and A-MPR value etc.) of the transmission power control when sending carrying out discontinuous bandwidth assignment when sending.That is to say; In dispensing device 100; When carrying out transmission power control,, need not compare yet and append the parameter parameter of each frequency setting interval of discrete bandwidth or cluster (for example to) again with Rel.8LTE even if carrying out discontinuous bandwidth assignment when sending.
In addition; In dispensing device 100; Carrying out discontinuous bandwidth assignment when sending; The frequency interval of the allocated frequency band of dispensing device 100 (frequency intervals between a plurality of clusters) is narrow more, just more for distributing the state that sends near sequential frequency band, can make the transmitted power (transmitted power density) of per unit frequency big more.Thereby dispensing device 100 is carrying out discontinuous bandwidth assignment when sending, and becomes big (that is to say, can make effective MPR value (A-MPR value) littler) through carrying out can making according to the transmission power control of the allocated frequency band of dispensing device 100 transmitted power.That is to say; In this execution mode; For example; With total transmitted power is only set minority (1 or 2) and is supposed that the method for the MPR value (A-MPR value) of the poorest frequency status compares, can the coverage rate of carrying out the signal that discontinuous bandwidth assignment sends from dispensing device 100 and gain be maintained with sequential frequency band and distribute same degree when sending.
Thereby; According to this execution mode; Even if under dispensing device carries out situation that discontinuous bandwidth assignment sends, when carrying out transmission power control, can not append parameter again and can utilize again and suppose that sequential frequency band distributes the transmitted power control method among the Rel.8LTE that sends.In addition, according to this execution mode,, also can keep with having supposed sequential frequency band and distribute the coverage rate and the gain of the situation same degree of sending even if carry out under the situation of discontinuous bandwidth assignment transmission at dispensing device.
In addition, in this execution mode, RB is used the Frequency Distribution unit that does dispensing device, but be not limited to RB as Frequency Distribution unit to dispensing device, also can frequency of utilization [Hz].Particularly, as long as use following formula (7) to replace employed formula (3) in this execution mode.In addition, in the case, use following formula (8) to replace in this execution mode employed formula (6) to calculate to sending the transmitted power P of data PUSCH
M C(i)=(f higt-f low)/B RB[RB] (7)
P PUSCH ( i ) = P C ′ ( i ) + 10 log 10 ( M PUSCH ( i ) f high - f low ) [ dBm ] - - - ( 8 )
In formula (7), f LowThe low-limit frequency in the frequency band of dispensing device, f are distributed in [Hz] expression HighThe highest frequency in the frequency band of dispensing device, B are distributed in [Hz] expression RBThe frequency bandwidth [Hz] of per 1 RB of [Hz] expression.In addition, the M shown in the formula (8) PUSCH(i) and the M shown in the formula (6) PUSCH(i) [RB] difference is defined as the aggregate value [Hz] of the frequency bandwidth that the transmission signal of distributing to dispensing device occupied.
For example, explain as shown in Figure 8ly, use 1 PA, and will send signal and use carrier wave (the Component carrier:CC of a plurality of units.Be two CC (CC1 and CC2) among Fig. 8) situation (carrier aggregation: CarrierAggregation of sending.For example, N * DFT-s-OFDM sends or N * SC-FDMA sends).In Fig. 8, dispensing device has confirmed to distribute the low-limit frequency f in the frequency band that sends signal Low[Hz] (being assigned to the low-limit frequency in the frequency band in the CC1) and distributed the highest frequency f in the frequency band that sends signal High[Hz] (being assigned to the highest frequency in the frequency band in the CC2) calculated and supposed that sequential frequency band distributes the transmission bandwidth M that sends C(i) [Hz].Next, dispensing device likewise uses with this execution mode and sends bandwidth M C(i) [Hz] sets transmission power value P according to formula (2), formula (4) and formula (8) PUSCH(i) [dBm].
In addition, in this execution mode, the situation that dispensing device sends PUSCH has been described, the situation of sending PUCCH for dispensing device also can be suitable for the present invention.Particularly, dispensing device 100 (Fig. 2) calculates transmission power value P according to following formula (9) replacement formula (2) under the situation of only sending PUCCH C(i) [dBm].
P C(i)=10log 10(M C(i))+P O_PUCCH+β·PL+h+Δ F+g(i)[dBm] (9)
In formula (9), P O_PUCCHExpression is used for the receiving target performance number of PUCCH, and β representes multiply by the coefficient of propagation loss (PL) value, and PL representes the propagation loss value by propagation loss determination unit 109 (Fig. 2) mensuration, h and Δ FRepresent the deviant corresponding with the transmission form of PUCCH, the PUCCH of g (i) expression (Fig. 2) input from CRC unit 108 is with the accumulated value of transmission power value (controlling value of Closed-TPC).
In addition, in formula (9), M C(i) be illustrated in the transmission bandwidth to PUCCH (unit is RB) in the i sub-frame.But sequential frequency band transmission power calculation unit 210 (Fig. 3) is continuously still discontinuous according to the allocated frequency band from the dispensing device 100 shown in the frequency band allocation information of CRC unit 108 (Fig. 2) input, sets and sends bandwidth M C(i).Particularly, sequential frequency band transmission power calculation unit 210 is counted the RB that distributes PUCCH itself directly to be set at and is sent bandwidth M under the allocated frequency band of dispensing device 100 is continuous situation C(i).On the other hand; Allocated frequency band at dispensing device 100 is under discrete situation, sequential frequency band transmission power calculation unit 210 use with a plurality of sequential frequency bands (cluster) that distributed PUCCH in, the RB n of RB that low-limit frequency that the cluster that is assigned to low-limit frequency is interior is corresponding Low RB, and with a plurality of clusters that distributed PUCCH in, the RB n of RB that highest frequency in the cluster that is assigned to highest frequency is corresponding High RB, set transmission bandwidth M according to following formula (10) C(i) [RB].
M C ( i ) = n high RB - n low RB + 1 [ RB ] - - - ( 10 )
Then, comparing unit 211 (Fig. 3) uses the transmitted power P that following formula (11) is relatively imported from sequential frequency band transmission power calculation unit 210 C(i) with from the maximum transmit power value P of high level input CMAXResult relatively is judged to be the transmitted power P of littler value C(i) and maximum transmit power value P CMAXA wherein side as transmission power value P ' C(i) export transmitted power setup unit 212 (Fig. 3) again to.In addition, maximum transmit power value P CMAXFor comprising the MPR value set frequency band position according to band system band etc. and the maximum transmit power value of A-MPR value.
P′ C(i)=min{P CMAX,P C(i)}[dBm] (11)
Next, setup unit 212 (Fig. 3) is based on the frequency band allocation information of 108 inputs from the CRC unit again for transmitted power, and setting is to the transmission power value of PUCCH.Particularly, under the allocated frequency band to dispensing device 100 shown in the frequency band allocation information was continuous situation, shown in (12), transmitted power setup unit 212 again will be from the transmission power value P ' of comparing unit 211 inputs C(i) be set at transmission power value P to PUCCH PUCCH(i).
P PUCCH(i)=P′ C(i)[dBm] (12)
On the other hand, be under discrete situation at the allocated frequency band of the dispensing device shown in the frequency band allocation information 100, transmitted power setup unit 212 again uses actual allocated to count M for the RB of dispensing device 100 PUCCH(i), set sending the transmission power value P of data according to following formula (13) PUCCH(i).
P PUCCH ( i ) = P C ′ ( i ) + 10 log 10 ( M PUCCH ( i ) M C ( i ) ) [ dBm ] - - - ( 13 )
In addition, in this execution mode, through type (2), formula (4) and formula (6) setting transmission power value P when carrying out multicarrier transmission (discontinuous bandwidth assignment transmission) have been proposed PUSCH(i) example, but here, also can be as being suitable for M by formula (3) definition C(i) and the RB of actual allocated count M PUSCHThe such transmission power value P that sets of the following formula of equivalence (i) (14) PUSCH(i).
P PUSCH(i)=min{P CMAX-10log 10(M C(i)),
[dBm] (14)
10log 10(M PUSCH(i))+P O_PUSCH(j)+α(j)·PL+Δ TF(i)+f(i)}
(execution mode 2)
In this execution mode, explain that dispensing device sends that data and the 2nd are sent the data frequency division multiplexing and the situation of sending simultaneously with the 1st.
In following explanation, the 1st transmission data (sending data 1) as user data (PUSCH), are sent data (sending data 2) as control information (PUCCH) with the 2nd.Yet, send data 1 and be not limited to PUSCH and PUCCH with transmission data 2.In addition, sending data 1 also can be the arbitrary side in user data (PUSCH) and the control information (PUCCH) with sending data 2.
In addition, in following explanation, dispensing device is controlled transmitted power of sending data 1 and the transmitted power of sending data 2 respectively independently.
Fig. 9 representes the structure of the dispensing device 300 (UE) of this execution mode.In addition, in Fig. 9,, and omit its explanation to the additional same label of the structural element identical with execution mode 1 (Fig. 2).
Dispensing device 300 shown in Figure 9 can be with sending data 1 (PUSCH) and sending these two of data 2 (PUCCH) and send the data frequency division multiplexing and send, and can set individually bandwidth assignment and the transmission power control to each transmission data simultaneously.
In dispensing device shown in Figure 9 300, the CRC unit 108 of CRC unit 301 and execution mode 1 is likewise judged carrying out CRC from each control information of decoding unit 107 inputs.But, control information except the frequency band allocation information that be used for PUSCH (send data 1) identical with execution mode 1 with the transmission power control information, also comprise the frequency band allocation information and the transmission power control information that are used for PUCCH (transmission data 2).And CRC unit 301 is being judged to be under the situation that receives control information exactly, will export transmission power control unit 302 and sending controling unit 303 to each other control information of sending data.
Control information (the maximum transmit power value P that the PUSCH (sending data 1) that transmission power control unit 302 uses 301 inputs from the CRC unit imports with control information (frequency band allocation information and transmission power control information), from high level (not shown) with control information (frequency band allocation information and transmission power control information) and PUCCH (transmission data 2) in advance CMAX, receiving target power, the alpha that multiply by propagation loss and β, with send data class or modulation system (QPSK, 16QAM etc.) the corresponding offset value delta of kind TF, the offset value delta corresponding with the transmission form of PUCCH FEtc. parameter) and, determine transmission data 1 of sending and the transmitted power of sending data 2 based on frequency band allocation information from the propagation loss information (PL) that propagation loss determination unit 109 is imported.And transmission power control unit 302 inputs to signal amplification unit 118 and control signal amplifying unit 118 through the transmission power value with decision, so that send the transmission power value that the transmitted power of data 1 and transmission data 2 becomes decision.
In addition, represent to send data 1 (PUSCH) and send under the situation that data 2 (PUCCH) send simultaneously in each frequency band allocation information, can transmission power control unit 302 is judged with sending data 1 (PUSCH) and transmission data 2 (PUCCH) sent simultaneously.In addition, transmission power control unit 302 sends the control of data 1 and the transmission power gain ratio that sends data 2 for gain control unit 304 and gain control unit 307.In addition, the details handled of the transmission power control in the transmission power control unit 302 with after state.
Sending controling unit 303 sends data 1 and the transmission control of sending data 2 based on the frequency band allocation information by receiving system (eNB) notice.Particularly; Sending controling unit 303 based on from the CRC unit 301 the input transmission data 1 (PUSCH) with the distributing radio resource shown in the frequency band allocation information with the transmission parameter, export encoding rate, modulation system and physical resource positional information to coding unit 112, modulating unit 113 and map unit 308 respectively.Equally; Sending controling unit 303 based on from the CRC unit 301 the input transmission data 2 (PUCCH) with the distributing radio resource shown in the frequency band allocation information with the transmission parameter, export encoding rate, modulation system and physical resource positional information to coding unit 305, modulating unit 306 and map unit 308 respectively.
Gain control unit 304 is according to the control of transmission power control unit 302, for carrying out gain controlling from the transmission data 1 (PUSCH) of modulating unit 113 inputs.Next, gain control unit 304 exports the transmission data 1 (PUSCH) after the gain controlling to map unit 308.
Same with coding unit 112, coding unit 305 is encoded for sending data 2 (PUCCH) according to the encoding rate from sending controling unit 303 inputs, and will export modulating unit 306 to through the transmission data 2 of coding.Same with modulating unit 113; Modulating unit 306 is according to the modulation system from sending controling unit 303 inputs; Transmission data 2 (coded-bit row) for importing from coding unit 305 are modulated, and the transmission data after will modulating export gain control unit 307 to.
Same with gain control unit 304, gain control unit 307 is according to the control of transmission power control unit 302, for carrying out gain controlling from the transmission data 2 (PUCCH) of modulating unit 306 inputs.Next, gain control unit 307 exports the transmission data 2 (PUCCH) after the gain controlling to map unit 308.
Map unit 308 will be from the transmission data 1 (PUSCH) of gain control unit 304 inputs and the transmission data of importing from gain control unit 307 2 (PUCCH); Be mapped to from the physical resource shown in the physical resource positional information of sending controling unit 303 input, will have and be mapped with the suitable a plurality of subcarrier signals of physical resource of sending data 1 (PUSCH) and transmission data 2 (PUCCH) and export IFFT unit 115 to.
Below, the details that the transmission power control in the transmission power control unit 302 of dispensing device 300 is handled is described.Below, the 1st data are made as user data (PUSCH), the 2nd data are made as control information (PUCCH).
Figure 10 representes the internal structure of transmission power control unit 302.In transmission power control unit 302 shown in Figure 10, possess sequential frequency band transmission power calculation unit 410-1 and 410-2, comparing unit 411-1 and 411-2, transmitted power setup unit 412-1 and 412-2 and switch (SW) 414-1 and 414-2 more accordingly with PUSCH and PUCCH respectively.
In addition, setup unit 412-1 and 412-2 carry out and the identical processing of setup unit 212 again of sequential frequency band transmission power calculation unit 210, comparing unit 211 and the transmitted power of execution mode 1 (Fig. 3) PUSCH or PUCCH again for the sequential frequency band transmission power calculation unit 410-1 of transmission power control unit 302 shown in Figure 10 and 410-2, comparing unit 411-1 and 411-2 and transmitted power.
Under arbitrary side's in only sending PUSCH and PUCCH the situation, transmission power control unit 302 carries out the transmission power control identical with execution mode 1 for PUSCH and PUCCH.For example, as the transmitted power control method to PUSCH, transmission power control unit 302 uses formula (2), formula (4) and the formula (5) (just using formula (1)) of execution mode 1 to set transmitted power P PUSCH(i).In addition, for example, as the transmitted power control method to PUCCH, transmission power control unit 302 uses the formula (9) of execution mode 1 to set transmitted power P PUCCH(i).That is to say that transmission power control unit 302 uses has supposed that sequential frequency band distributes the transmitted power control method among the Rel.8LTE that sends, and controls the transmitted power of PUSCH and PUCCH respectively independently.
In addition, when from the frequency band allocation information of receiving system (eNB) notice, expression is carried out frequency division multiplexing with PUSCH and PUCCH and under the situation of sending simultaneously, and can transmission power control unit 302 is judged with PUSCH and PUCCH carries out frequency division multiplexing and transmission simultaneously.Particularly, transmission power control unit 302 compares to determine parameter and determinating reference, and judgement is to send PUSCH and PUCCH, an or wherein side who only sends PUSCH and PUCCH simultaneously.In addition, above-mentioned determinating reference is the maximum transmit power value P that sets in the transmitted power control method (transmitted power control method among the Rel.8LTE) at PUSCH and PUCCH CMAXIn addition, the transmitted power P that states after being of above-mentioned critical parameter C(i).
Particularly, in Figure 11, send data selection unit 413 based on PUSCH with control information, PUCCH with control information, maximum transmit power value P CMAXWith propagation loss value (PL), between PUSCH and PUCCH, compare the transmitted power (transmitted power density just) of per unit frequency (1RB).Next; Send data selection unit 413 according to following formula (15); The transmitted power density of the transmission data that the transmitted power density among PUSCH and the PUCCH is bigger is set at reference power density, thereby the calculating hypothesis comprises the transmitted power P in the i subframe under the situation that the allocated frequency band of PUSCH and PUCCH both sides' dispensing device 300 is a sequential frequency band C(i).
P C(i)=10log 10(M C(i))+max{P PUSCH_1RB(i),P PUCCH_1RB(i)} (15)
In formula (15), M C(i) expression: the low-limit frequency in hypothesis will have been distributed transmission data in the frequency band (allocated frequency band) of PUSCH that dispensing device 300 sent and PUCCH, that be assigned to lowest band respectively and to have distributed highest frequency in the transmission data in the frequency band of PUSCH and PUCCH, that be assigned to high frequency band respectively be transmission bandwidth (unit is RB) under the situation of sequential frequency band, in the i subframe as the frequency band at its two ends.For example, shown in figure 11, the RB n of the low-limit frequency (RB) in the PUCCH that is assigned to lowest band in the allocated frequency band of transmission data selection unit 413 use PUSCH and PUCCH Low RB, and the allocated frequency band of PUSCH and PUCCH in the PUSCH that is assigned to high frequency band in the RB n of highest frequency (RB) High RB, set transmission bandwidth M according to the formula (3) or the formula (7) of execution mode 1 C(i) [RB].
In addition, in formula (15), the PUSCH transmitted power of per unit frequency (1RB) (transmitted power density) P PUSCH_1RB(i) and the PUCCH transmitted power of per unit frequency (1RB) (transmitted power density) P PUCCH_1RB(i), can calculate according to following formula (16) and following formula (17).
P PUSCH_1RB(i)=P O_PUSCH+α·PL+Δ TF(i)+f(i) (16)
P PUCCH_1RB(i)=P O_PUCCH+PL+h+Δ F(i)+g(i) (17)
Wherein, formula (16) is identical with formula (9) with the formula (2) of execution mode 1 with each parameter in the formula (17).
That is to say the transmitted power P of the above-mentioned critical parameter of conduct in the transmission power control unit 302 C(i) for through will be at the transmitted power density P of PUSCH PUSCH_1RB(i) and the transmitted power density P of PUCCH PUCCH_1RB(i) the bigger transmitted power density in and the bandwidth M of frequency band C(i) multiply each other and the performance number that calculates, this frequency band is with low-limit frequency (the RB n in the transmission data that are assigned to lowest band among PUSCH and the PUCCH Low RB) and PUSCH and PUCCH in the transmission data that are assigned to high frequency band in highest frequency (RB n High RB) as the frequency band at its two ends.
In addition, here, explained with execution mode 1 likewise to from the situation of low frequency with additional continuously RB number of ascending order.Yet; In essence, send the continuous frequency band that data selection unit 413 calculates the RB that has supposed to comprise the RB that sends the low-limit frequency in data 1 and the allocated frequency band that sends data 2 and highest frequency (with the RB of the RB of low-limit frequency and highest frequency frequency band) and distribute to the transmitted power under the situation of dispensing device 300 as its two ends.
In addition, in the disclosed 3GPP E-UTRA of non-patent literature 2 system, shown in Figure 12 A, PUCCH is between preceding half (the time slot #1) and later half (time slot #2) of 1 sub-frame, and transmission RB carries out frequency hopping in the position.Like this, under the situation of PUCCH, PUSCH or PUSCH and PUCCH both sides' frequency hopping, send data selection unit 413, as working as the transmitted power P shown in the calculating formula (15) according to following formula (18) C(i) employed transmission bandwidth M the time C(i), the transmission bandwidth M among the time slot #1 shown in suitable Figure 12 B C Slot#1(i) and the transmission bandwidth M among the time slot #2 shown in Figure 12 C C Slot#2(i) the wideer transmission bandwidth in.That is to say that between a plurality of time slots in 1 subframe, PUSCH or PUCCH carry out under the situation of frequency hopping, as the transmitted power P of critical parameter C(i) for using a plurality of transmission bandwidth (to be M among Figure 12 B and Figure 12 C to each calculating of a plurality of time slots in 1 sub-frame C Slot#1(i) and M C Slot#2) in the performance number of the wideest bandwidth calculation.
M C ( i ) = max { M C slot # 1 ( i ) , M C slot # 2 ( i ) } - - - ( 18 )
Then, send the transmitted power P that 413 pairs of use formulas of data selection unit (15) are calculated C(i) with from the maximum transmit power value P of high level input CMAXCompare.Then, send data selection unit 413 and judge whether send PUSCH and PUCCH (the transmission data that selection just will be sent) simultaneously according to result relatively.In addition, maximum transmit power value P CMAXFor comprising the MPR value set frequency band position according to band system band etc. and the maximum transmit power value of A-MPR value.
Particularly, at transmitted power P C(i) greater than maximum transmit power value P CMAXSituation under (P CMAX<P C(i)), sending data selection unit 413 is judged to be a wherein side who only sends PUSCH and PUCCH and does not send (drop) the opposing party.Next; Send among data selection unit 413 indication SW414-1 and the 414-2 with the corresponding SW414 of transmission data that will send, will from corresponding to the transmitted power of the transmission data that will send again the transmission power value imported of setup unit 412 export transmission power gain control unit 415 to.On the other hand; Send data selection unit 413 and indicate for the corresponding SW414 of transmission data among SW414-1 and the 414-2 with not sending, with will from corresponding to the transmitted power of the transmission data of not sending again the transmission power value imported of setup unit 412 be made as zero.
Generally speaking, PUCCH comprises channel quality information, the mix automatic repeat requests response signal etc. of (Hybrid Automatic repeat request), compares prior information with the PUSCH that can retransmit.Thereby, preferably at transmitted power P C(i) greater than maximum transmit power value P CMAXSituation under (P CMAX<P C(i)), sending data selection unit 413 is judged to be transmission PUCCH and does not send PUSCH.
On the other hand, send data selection unit 413 at transmitted power P C(i) be maximum transmit power value P CMAX(P under the following situation CMAX>=P C(i)), be judged to be and send PUSCH and PUCCH simultaneously.And, send 413 couples of SW414-1 of data selection unit, 414-2 both sides' indication, will from the transmitted power of sending data corresponding to each again each transmission power value of setup unit 412-1,412-2 input export transmission power gain control unit 415 to.
SW414-1 and SW414-2 are according to the indication from transmission data selection unit 413; Switching from transmitted power again the ON/OFF of the transmission power value of setup unit 412-1,412-2 input (ON: directly export transmission power value, OFF: with transmission power value be made as zero and export).
Then; Under a wherein side's who only imports PUSCH and PUCCH transmission data conditions, transmission power gain control unit 415 will from the transmitted power corresponding with these transmission data again the transmission power value imported via SW414 of setup unit 412 directly export signal amplification unit 118 to.At this moment, transmission power gain control unit 415 will all be set at 1 to the gain control value 1 of PUSCH with to gain control value 2 both sides of PUCCH, and export gain control unit 304 and gain control unit 307 respectively to.This means in gain control unit 304 and gain control unit 307, do not carry out gain controlling sending data.
On the other hand, under input PUSCH and PUCCH both sides' situation (when sending simultaneously), transmission power gain control unit 415 is based on from the transmitted power transmission power value (P that imports via SW414-1,414-2 of setup unit 412-1,412-2 again PUSCH(i), P PUCCH(i)), set to the gain control value 1 of PUSCH with to the gain control value 2 of PUCCH.
Particularly, in signal amplification unit 118 (Fig. 9), suppose the amplifying circuit of 1 system, therefore the transmitted power from signal amplification unit 118 outputs must become (P PUSCH(i)+P PUCCH(i)) [dBm].That is to say; In dispensing device 300; Must be before map unit 308 be sent data multiplex with two, the transmission power value (transmitted power density) of the per unit frequency of adjustment PUSCH and PUCCH is poor in gain control unit 304 and gain control unit 307.
Therefore, transmission power gain control unit 415 is with (P PUSCH(i)+P PUCCH(i)) [dBm] when sending PUSCH and PUCCH simultaneously transmission power value and export signal amplification unit 118 to.In addition, transmission power gain control unit 415 is set the gain control value 1 to PUSCH according to following formula (19), and exports gain control value 1 to gain control unit 304.In addition, transmission power gain control unit 415 is set the gain control value 2 to PUCCH according to following formula (20), and exports gain control value 2 to gain control unit 307.
Figure BDA00002170808500261
Figure BDA00002170808500262
In addition, the gain control method to PUSCH and PUCCH shown in formula (19) and the formula (20) is an example, as long as be to become P respectively from the transmitted power 1 (PUSCH) of signal amplification unit 118 outputs and the transmitted power of transmitted power 2 (PUCCH) PUSCH(i) [dBm], P PUCCH(i) [dBm], and total transmitted power becomes (P PUSCH(i)+P PUCCH(i)) mode of [dBm] is carried out the method for gain controlling, also can use other gain control methods.
Below, the flow process that the transmission power control in the transmission power control unit 302 is handled is described.Figure 13 is the flow chart of the flow process of the transmission power control processing in the expression transmission power control unit 302.
In Figure 13, in ST201, transmission power control unit 302 judges whether in the i subframe, to send simultaneously PUSCH and PUCCH based on the frequency band allocation information from receiving system (eNB) notice.Send at the same time under the situation of PUSCH and PUCCH (ST201: " being "), in ST202, transmission power control unit 302 (sending data selection unit 413) be transmitted power (the transmitted power density of the per unit frequency (1RB) of PUSCH relatively.P shown in the formula (16) PUSCH_1RBAnd the transmitted power density of the PUCCH (P shown in the formula (17) (i)) PUCCH_1RB(i)), and the transmitted power of selecting the bigger transmission data of transmitted power density as reference power.
In ST203, transmission power control unit 302 (sending data selection unit 413) is set at transmission bandwidth M with the RB number corresponding with following frequency band C(i), this frequency band is with the RB that the is assigned to low-limit frequency (n for example shown in Figure 11 in whole frequency bands (allocated frequency band) of distributing to PUSCH and PUCCH Low RB) and be assigned to the RB (n for example shown in Figure 11 of highest frequency High RB) as the frequency band (continuous frequency band) at its two ends.Then, send data selection unit 413 and use the transmission bandwidth M that sets C(i) and the reference power of in ST202, selecting, calculate transmission power value P according to formula (15) C(i).
In ST204, the maximum transmit power value P that transmission power control unit 302 (sending data selection unit 413) relatively imported from high level CMAXWith the transmission power value P that in ST203, calculates C(i).
At transmission power value P C(i) be maximum transmit power value P CMAXUnder the following situation (ST204: " denying "); In ST205, the transmission power control unit 110 of transmission power control unit 302 (sequential frequency band transmission power calculation unit 410~transmitted power is setup unit 412 again) and execution mode 1 likewise calculates the transmission power value P of PUSCH respectively PUSCH(i) and the transmission power value P of PUCCH PUCCH(i).In addition; Transmission data selection unit 413 is judged to be sends PUSCH and PUCCH simultaneously; Indicate for SW414-1,414-2, with will from transmitted power again the transmission power value of setup unit 412-1,412-2 input export transmission power gain control unit 415 to.
In ST206, transmission power control unit 302 (transmission power gain control unit 415) is with (P PUSCH(i)+P PUCCH(i)) [dBm] is set at the transmission power value when sending PUSCH and PUCCH simultaneously.In addition, transmission power gain control unit 415 adjustment to the gain control value 1 (formula (19)) of PUSCH and to the gain control value 2 (formula (20)) of PUCCH so that the transmission power value when sending PUSCH and PUCCH simultaneously becomes (P PUSCH(i)+P PUCCH(i)) [dBm].
On the other hand, the transmission power value P that in ST203, calculates C(i) greater than maximum transmit power value P CMAXSituation under (ST204: " being "), in ST207, transmission power control unit 302 (send data selection unit 413) selected the wherein side of PUSCH and PUCCH.For example, considering that PUCCH, sends data selection unit 413 and selects PUCCH as the transmission data that will send under the prior situation than PUSCH.
Under the situation of PUSCH and PUCCH not being sent simultaneously (ST201: " denying "), or the transmission power value P that in ST203, calculates C(i) greater than maximum transmit power value P CMAXSituation under (ST204: " being "); Just under a wherein side's who only sends PUSCH and PUCCH situation; In ST208; The transmission power control unit 110 of transmission power control unit 302 (sequential frequency band transmission power calculation unit 410~transmitted power is setup unit 412 again) and execution mode 1 likewise calculates the transmission power value of the transmission data (PUSCH or PUCCH) that will send, is set the transmission power value when sending the transmission of data.
In ST209, the transmission power value that transmission power control unit 302 (transmission power gain control unit 415) will calculate in ST206 or ST208 exports signal amplification unit 118 to.
Like this; Carrying out under the situation of transmission power control independently respectively to PUSCH and PUCCH; When PUSCH and PUCCH frequency division multiplexing are sent simultaneously, transmission power control unit 302 will (be RB n among Figure 11 with the low-limit frequency in the frequency band that distributes PUSCH and PUCCH relatively Low RB) and highest frequency (be RB n among Figure 11 High RB) regard the transmitted power P that continuous frequency band calculates as for the frequency band at its two ends C(i) and maximum transmit power value P CMAX
At this moment, based on the transmitted power of the bigger transmission data of the transmitted power density in the transmitted power density of the transmitted power density of PUSCH and PUCCH, the transmitted power P shown in the calculating formula (15) C(i).
And then, shown in Figure 12 A, between the different time-gap (time slot #1, time slot #2) of PUCCH in 1 sub-frame under the situation of frequency hopping, shown in (18), be based on the transmission bandwidth M that is regarded as above-mentioned continuous frequency band among the time slot #1 C Slot#1(i) and in time slot #2, be regarded as the transmission bandwidth M of above-mentioned continuous frequency band C Slot#2(i) the transmission bandwidth that the bandwidth in is wideer ,] the transmitted power P shown in the calculating formula (15) C(i).
That is to say, when transmission power control unit 302 sends PUSCH and PUCCH at the same time, will in the sequential frequency band that comprises PUSCH and PUCCH, carry out sequential frequency band and distribute the maximum transmit power P that supposes under the situation of sending C(i) (just suppose the transmitted power that transmitted power density is bigger, send the wideer situation of bandwidth) and carried out the maximum transmit power value P that sequential frequency band distributes (for example Rel.8LTE) when sending CMAXCompare.
Thereby, the transmission power value when dispensing device 300 sends PUSCH and PUCCH in fact simultaneously and the transmitted power P of calculating C(i) identical or be transmitted power P C(i) possibility below is higher.
Thus, at transmission power value P C(i) be maximum transmit power value P CMAXUnder the following situation, even if dispensing device 300 sends PUSCH and PUCCH in fact simultaneously, actual transmission power value also is no more than maximum transmit power value P CMAXThat is to say, at transmission power value P C(i) be maximum transmit power value P CMAXBelow situation under, also be no more than with the sequential frequency band distribution and be sent as prerequisite and the spectrum mask stipulated even if dispensing device 300 sends PUSCH and PUCCH in fact simultaneously.Therefore, at transmission power value P C(i) be maximum transmit power value P CMAXUnder the following situation, dispensing device 300 can be judged to be and can send PUSCH and PUCCH simultaneously.
With respect to this, at transmission power value P C(i) greater than maximum transmit power value P CMAXSituation under, if dispensing device 300 sends PUSCH and PUCCH in fact simultaneously, transmission power value that then might be actual surpasses maximum transmit power value P CMAXThat is to say, at transmission power value P C(i) greater than maximum transmit power value P CMAXSituation under, if dispensing device 300 sends PUSCH and PUCCH in fact simultaneously, then might surpass and distribute the spectrum mask that is sent as prerequisite and stipulates with sequential frequency band.Therefore, at transmission power value P C(i) greater than maximum transmit power value P CMAXSituation under, dispensing device 300 can be judged to be a wherein side (PUCCH that for example comprises more important information) that only can send PUSCH and PUCCH.
Like this; According to this execution mode; Even if send at the same time (sequential frequency band distributes transmission or discontinuous bandwidth assignment to send) under a plurality of transmission data conditions, dispensing device does not rely on the RB number of number, dividing frequency position or each transmission data of sending data yet, that is to say; Do not append new argument, and can judge and to send a plurality of transmission data simultaneously.Thus; In the dispensing device; Even if a plurality of transmission data frequency division multiplexings that independently carry out transmission power control under the situation of sending simultaneously (sequential frequency band distributes transmission or discontinuous bandwidth assignment to send), also can directly used and are supposing that sequential frequency band distributes the transmission power control among the Rel.8LTE that sends.
In addition, according to this execution mode, under the situation of sending with a plurality of transmission data frequency division multiplexings that independently carry out its transmission power control and simultaneously, dispensing device is judged continuous frequency band (the above-mentioned transmission bandwidth M that has supposed to comprise a plurality of transmission data CWhether performance number (i)) satisfies with sequential frequency band is distributed the regulation (spectrum mask etc.) that is sent as prerequisite and sets.Thereby, even if a plurality of transmission data frequency division multiplexings that independently carry out its transmission power control under the situation of sending simultaneously, also can sent to keep in the data with having supposed sequential frequency band and are distributing the coverage rate and the gain of the situation same degree of sending at each.
More than, each execution mode of the present invention has been described.
In addition, in the above-described embodiment, be that example describes to constitute situation of the present invention by hardware, but the present invention also can be realized under the cooperation of hardware by software.
In addition, the LSI that each functional block of using in the explanation of above-mentioned execution mode is used as integrated circuit usually realizes.These functional blocks both can be integrated into single-chip individually, also can comprise a part or be integrated into single-chip fully.Though be called LSI here,, can be called as IC, system LSI, super large LSI (Super LSI) or especially big LSI (Ultra LSI) according to degree of integration.
In addition, realize that the method for integrated circuit is not limited only to LSI, also can use special circuit or general processor to realize.Also can use can LSI make the back programming FPGA (Field Programmable Gate Array: field programmable gate array), the perhaps connection of the inner circuit unit of restructural LSI and the reconfigurable processor of setting.
Moreover along with semi-conductive technological progress or other technological appearance of derivation thereupon, if can substitute the new technology of the integrated circuit of LSI, this new technology capable of using is carried out the integrated of functional block certainly.Also exist the possibility that is suitable for biotechnology etc.
The disclosure of specification, Figure of description and specification digest that the Japanese Patent Laid of on April 5th, 2010 application is willing to be comprised for 2010-086989 number is fully incorporated in the application.
Industrial applicibility
The present invention can be applicable to GSM etc.

Claims (10)

1. dispensing device; Use first pattern and second pattern; Said first pattern will be sent data allocations to continuous frequency band, and said second pattern will be sent data and is divided into a plurality of clusters and said a plurality of clusters are assigned to discrete a plurality of frequency band respectively, and this dispensing device comprises:
Control unit according to said first pattern and said second pattern, is controlled the transmitted power of said transmission data; And
Transmitting element sends said transmission data with said transmitted power,
When said first pattern, said control unit is set said transmitted power based on the transmitted power control method that the said continuous frequency band of hypothesis sets,
When said second pattern; Said control unit is the bandwidth of the continuous frequency band in said first pattern with the bandwidth settings of first frequency band; Continuous frequency band and said transmitted power control method based on said setting calculate first power; And the bandwidth and the said discrete a plurality of frequency bands that have been assigned with said a plurality of clusters that use said first the frequency band i.e. ratio and said first power of the bandwidth of second frequency band; Calculate said transmitted power, low-limit frequency that said first frequency band is interior with the cluster that is assigned to minimum frequency band in said a plurality of clusters and the highest frequency in the cluster that is assigned to the highest frequency band in said a plurality of cluster are as its two ends.
2. dispensing device as claimed in claim 1,
Said transmission data are Physical Uplink Shared Channel,
When said first pattern, said control unit is based on the said transmitted power control method shown in formula (1) and the formula (2), the said transmitted power P shown in the setting formula (3) PUSCH(i),
When said second pattern, said control unit is with the bandwidth M of said first frequency band shown in the formula (4) c(i) be set at the bandwidth of the continuous frequency band in said first pattern, based on the said transmitted power control method shown in formula (1) and the formula (2) calculate said first power P ' cAnd use the bandwidth M of said first frequency band (i), c(i) and the bandwidth M of said second frequency band PUSCH(i) ratio and said first power P ' c(i), the said transmitted power P shown in the calculating formula (5) PUSCH(i),
P C(i)=10log 10(M C(i))+P O_PUSCH(j)+α(j)·PL+Δ TF(i)+f(i)[dBm] (1)
Wherein, i representes subframe numbers, P O_PUSCH(j) expression receiving target power, PL representes the propagation loss value that said dispensing device is measured, the coefficient of said propagation loss value PL, Δ are multiply by in α (j) expression TF(i) the expression deviant corresponding with modulation system, the accumulated value of the controlling value of f (i) expression closed loop transmission power control,
P′ C(i)=min{P CMAX,P C(i)}[dBm] (2)
Wherein, P CMAXThe maximum transmit power value that expression is set with said transmitted power control method,
P PUSCH(i)=P′ C(i)[dBm] (3)
M C(i)=(f high-f low)/B RB[RB] (4)
Wherein, f LowRepresent the low-limit frequency in the cluster that is assigned to minimum frequency band in said a plurality of cluster, f HighRepresent the highest frequency in the cluster that is assigned to the highest frequency band in said a plurality of cluster, B RBThe bandwidth of representing per 1 Resource Block,
P PUSCH ( i ) = P C ′ ( i ) + 10 log 10 ( M PUSCH ( i ) f high - f low ) [ dBm ] - - - ( 5 ) .
3. dispensing device as claimed in claim 1,
Said transmission data are Physical Uplink Shared Channel,
When said first pattern, said control unit is based on the said transmitted power control method shown in formula (1) and the formula (2), the said transmitted power P shown in the setting formula (3) PUSCH(i),
When said second pattern, said control unit is with the bandwidth M of said first frequency band shown in the formula (4) c(i) be set at the bandwidth of the continuous frequency band in said first pattern, based on the said transmitted power control method shown in formula (1) and the formula (2), calculate said first power P ' cAnd use the bandwidth M of said first frequency band (i), c(i) and the bandwidth M of said second frequency band PUSCH(i) ratio and said first power P ' c(i), the said transmitted power P shown in the calculating formula (5) PUSCH(i),
P C(i)=10log 10(M C(i))+P O_PUSCH(j)+α(j)·PL+Δ TF(i)+f(i)[dBm] (1)
Wherein, i representes subframe numbers, P O_PUSCH(j) expression receiving target power, PL representes the propagation loss value that said dispensing device is measured, the coefficient of said propagation loss value PL, Δ are multiply by in α (j) expression TF(i) the expression deviant corresponding with modulation system, the accumulated value of the controlling value of F (i) expression closed loop transmission power control,
P′ C(i)=min{P CMAX,P C(i)}[dBm] (2)
Wherein, P CMAXThe maximum transmit power value that expression is set with said transmitted power control method,
P PUSCH(i)=P′ C(i)[dBm] (3)
M C ( i ) = n high RB - n low RB + 1 [ RB ] - - - ( 4 )
Wherein, n Low RBThe Resource Block of the Resource Block that the interior low-limit frequency of expression and the cluster that is assigned to minimum frequency band in said a plurality of clusters is corresponding number, n High RBThe Resource Block of the Resource Block that the interior highest frequency of expression and the cluster that is assigned to the highest frequency band in said a plurality of clusters is corresponding number,
P PUSCH ( i ) = P C ′ ( i ) + 10 log 10 ( M PUSCH ( i ) M C ( i ) ) [ dBm ] - - - ( 5 ) .
4. dispensing device is controlled first respectively independently and is sent the transmitted power of data and the transmitted power of the second transmission data, and this dispensing device comprises:
Identifying unit compares critical parameter and determinating reference, thereby judges it is to send said first simultaneously to send data and the said second transmission data, still only sends said first and sends the wherein side that data and said second are sent data; And
Transmitting element based on the result of determination of said identifying unit, sends said first and sends data and the said second transmission data,
Said critical parameter is the performance number that multiplies each other and calculated through with first parameter and second parameter,
Said first parameter is the transmitted power of per unit frequency; Be said first send data the per unit frequency transmitted power promptly the first transmitted power density and said second send the i.e. transmitted power of bigger per unit frequency in the second transmitted power density of transmitted power of the per unit frequency of data
Said second parameter is the bandwidth of frequency band, and this frequency band sends low-limit frequency and said first in the transmission data that are assigned to minimum frequency band that data and said second send in the data with said first and sends highest frequency in the transmission data that are assigned to the highest frequency band that data and said second send in the data as its two ends.
5. dispensing device as claimed in claim 4,
Said identifying unit is under the situation of said critical parameter less than said determinating reference; Be judged to be and send said first transmission data and the said second transmission data simultaneously; At said critical parameter is under the situation below the said determinating reference, is judged to be and only sends the wherein side that the said first transmission data and said second are sent data.
6. dispensing device as claimed in claim 4,
Between a plurality of time slots in 1 subframe; Send data or said second to said first and send data and carry out under the situation of frequency hopping, the said performance number that said critical parameter is to use the wideest bandwidth in a plurality of said bandwidth that each time slot to the said a plurality of time slots in 1 subframe calculates to calculate.
7. dispensing device as claimed in claim 4,
The said first transmission data are Physical Uplink Shared Channel, and the said second transmission data are Physical Uplink Control Channel,
Said critical parameter P shown in the formula (1) C(i) be the said performance number that multiplies each other and calculated through with said first parameter and said second parameter,
Said first parameter is the transmitted power of per unit frequency, is the transmitted power of per unit frequency bigger in the said second transmitted power density shown in said first transmitted power density shown in the formula (2) and the formula (3),
Said second parameter is the bandwidth M of the frequency band shown in the formula (4) C(i), this frequency band sends data and said second with said first and sends the interior low-limit frequency f of the transmission data that are assigned to minimum frequency band in the data Low, and the said first highest frequency f that sends in the transmission data that are assigned to the highest frequency band that data and said second send in the data HighAs its two ends,
P C(i)=10log 10(M C(i))+max{P PUSCH_1RB(i),P PUCCH_1RB(i)} (1)
Wherein, i representes subframe numbers,
P PUSCH_1RB(i)=P O_PUSCH+α·PL+Δ TF(i)+f(i) (2)
Wherein, P O_PUSCHRepresent that said first sends the receiving target power of data, PL representes the propagation loss value that said dispensing device is measured, and α representes multiply by the coefficient of said propagation loss value PL, Δ TF(i) the expression deviant corresponding with modulation system, the accumulated value of the controlling value of the closed loop transmission power control that the said first transmission data of f (i) expression are used,
P PUCCH_1RB(i)=P O_PUCCH+PL+h+Δ F(i)+g(i) (3)
Wherein, P O_PUCCHRepresent that said second sends the receiving target power of data, h and Δ FThe corresponding deviant of transmission form of data is sent in expression and said second, the accumulated value of the controlling value of the closed loop transmission power control that the said second transmission data of g (i) expression are used,
M C(i)=(f high-f low)/B RB[RB] (4)
Wherein, B RBThe bandwidth of representing per 1 Resource Block.
8. dispensing device as claimed in claim 4,
The said first transmission data are Physical Uplink Shared Channel, and the said second transmission data are Physical Uplink Control Channel,
Said critical parameter P shown in the formula (1) C(i) be the performance number that multiplies each other and calculated through with said first parameter and said second parameter,
Said first parameter is the transmitted power of per unit frequency, is the transmitted power of per unit frequency bigger in the said second transmitted power density shown in said first transmitted power density shown in the formula (2) and the formula (3),
Said second parameter is the bandwidth M of the frequency band shown in the formula (4) C(i), this frequency band will with the said first pairing Resource Block n of low-limit frequency that send in the transmission data that are assigned to minimum frequency band that data and said second send in the data Low RBResource Block and with the said first corresponding Resource Block n of highest frequency that send in the transmission data that are assigned to the highest frequency band that data and said second send in the data High RBResource Block as its two ends,
P C(i)=10log 10(M C(i))+max{P PUSCH_1RB(i),P PUCCH_1RB(i)} (1)
Wherein, i representes subframe numbers,
P PUSCH_1RB(i)=P O_PUSCH+α·PL+Δ TF(i)+f(i) (2)
Wherein, P O_PUSCHRepresent that said first sends the receiving target power of data, PL representes the propagation loss value that said dispensing device is measured, and α representes multiply by the coefficient of said propagation loss value PL, Δ TF(i) the expression deviant corresponding with modulation system, the accumulated value of the controlling value of the closed loop transmission power control that the said first transmission data of f (i) expression are used,
P PUCCH_1RB(i)=P O_PUCCH+PL+h+Δ F(i)+g(i) (3)
Wherein, P O_PUCCHRepresent that said second sends the receiving target power of data, h and Δ FThe corresponding deviant of transmission form of data is sent in expression and said second, the accumulated value of the controlling value of the closed loop transmission power control that the said second transmission data of g (i) expression are used,
M C ( i ) = n high RB - n low RB + 1 [ RB ] - - - ( 4 ) .
9. transmitted power control method; Be used to use the dispensing device of first pattern and second pattern; Said first pattern will be sent data allocations to continuous frequency band; Said second pattern will be sent data and is divided into a plurality of clusters and said a plurality of clusters are assigned to discrete a plurality of frequency band respectively, and this transmitted power control method may further comprise the steps:
According to said first pattern and said second pattern, control the transmitted power of said transmission data; And
Send said transmission data with the transmitted power of said control,
In said first pattern, based on the transmitted power control method of the continuous band setting of hypothesis, set said transmitted power,
In said second pattern; The bandwidth of first frequency band is set to the bandwidth of the continuous frequency band in said first pattern; Continuous frequency band and said transmitted power control method based on said setting calculate first power; And the bandwidth and the said discrete a plurality of frequency bands that distributed said a plurality of clusters that use said first the frequency band i.e. ratio and said first power of the bandwidth of second frequency band; Calculate said transmitted power, low-limit frequency that said first frequency band is interior with the cluster that is assigned to minimum frequency band in said a plurality of clusters and the highest frequency in the cluster that is assigned to the highest frequency band in said a plurality of cluster are as its two ends.
10. transmission decision method, be used for controlling independently respectively first send data transmitted power and second send the dispensing device of the transmitted power of data, this method may further comprise the steps;
Critical parameter and determinating reference are compared, thereby judge it is to send said first simultaneously to send data and the said second transmission data, still only send said first and send the wherein side that data and said second are sent data; And
Based on said result of determination, send said first and send data and the said second transmission data,
Said critical parameter is the performance number that multiplies each other and calculated through with first parameter and second parameter,
Said first parameter is the transmitted power of per unit frequency, be said first send the per unit frequency of data transmitted power and said second send the transmitted power of per unit frequency bigger in the transmitted power of per unit frequency of data,
Said second parameter is the bandwidth of frequency band, and this frequency band sends low-limit frequency and said first in the transmission data that are assigned to minimum frequency band that data and said second send in the data with said first and sends highest frequency in the transmission data that are assigned to the highest frequency band that data and said second send in the data as its two ends.
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